The second amendment recognizes that an armed population is harder to dominate by a central authority. This is as true today as it was then, and just as important. The right to bear arms is not for the purposes of hunting or other recreational activities. It is a check against tyranny. History has shown power to be a corrupting force, so preventing the concentration of power should be the goal of any civilization interested in longevity.
Ending the private ownership of weapons should be considered carefully. Freedom is easy to lose and hard to gain. The loss of this particular freedom would make it considerably easier to lose the rest of them. What safety is worth that cost?